I need to achieve the following functionality in a ASP.NET webpage:
The webpage contains a listbox control and a button control. When the user clicks the button, a file browse dialog (with OK and CANCEL buttons) will be opened where multiple files (with same extention .CFG) could be selected. After the user selects one or more files and click "OK" in the dialog, the content of the selected files will be read out and added into the listbox.
How to implement such functionality? Thanks.
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